What does the recipient need to view the reports?
In the case of Plain text delivery, their email client or Notepad. Or just about any viewing software you can name. For HTML, the email client needs to support HTML viewing, otherwise any compliant HTML Browser, such as Internet Explorer or Netscape will do. RTF is generally view with MS Word, but lots of other products support RTF including browsers. PDF requires the Acrobat Reader. The is available for free from www.adobe.com. PDF has become the defacto standard for printed material delivery, most likely your recipients already have Acrobat installed for any number of other reasons. In summary, JES2Mail and JES2FTP generate standards compliant files for viewing with out any proprietary software that might need to be installed and managed on recipients PC.